Results 231 to 240 of about 24,733 (306)

Reconstruction and palaeoclimatic implications of Loch Lomond Readvance glaciers in the Southeast Grampians, Scotland

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT The glaciation of Scotland during the Loch Lomond Stadial (LLS; 12.9–11.7 ka BP) left a distinct and well‐preserved geomorphological signature, permitting detailed reconstructions of former glaciers and palaeoclimatic conditions. However, the extent and style of glaciation in the Southeast Grampians remains poorly constrained.
William Spicer
wiley   +1 more source

Sedimentary ancient DNA from caves: Challenges and opportunities

open access: yesJournal of Quaternary Science, EarlyView.
Abstract Caves are unique depositional environments that hold great potential for long‐term preservation of DNA due to their typically cool and stable internal climates, buffered from external climate extremes. Bones from caves have long been recognised as an excellent source of ancient DNA, yet the potential for DNA preservation in cave sediments ...
Siobhan Evans   +2 more
wiley   +1 more source

A Framework for Estimating Matric Suction in Compacted Fine‐Grained Soils Based on a Machine Learning‐Assisted Conceptual Model

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT In this study, a hybrid black‐ and white‐box machine learning (ML) framework is proposed for matric suction estimation in compacted fine‐grained soils, utilizing ML techniques, namely, particle swarm optimized support vector regression (PSO‐SVR) and multi‐gene genetic programming (MGGP). This objective is achieved through developing a novel ML‐
Junjie Wang, Sai Vanapalli
wiley   +1 more source

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